A same breath will give life to ("animera", Fr.) men, when they will will have succeeded in overcoming all that divide them et put them in opposition one another; then they will have a feeling of (or be aware, or conscious of) the limits of their individuality wonderfully widen (or broaden) and will (or might) be able to ("pourront", Fr.) unite in a beneficial (or salutary or kindly) atmosphere of harmony and brotherly concord.